(int)x 和 (int &)x
float x=1.75,y=1.75;
cout<<(int)x<<" "<<(int&)y<<endl;
輸出為:1 1071644672
(int)x 強(qiáng)制類型轉(zhuǎn)換,是將浮點(diǎn)數(shù)x為參數(shù)構(gòu)造整數(shù)(即float轉(zhuǎn)換為int)
(int &)y 則是告訴編譯器將y看成int對(duì)待(內(nèi)存里的數(shù)據(jù)不做任何轉(zhuǎn)換)

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